[lispm]

The commercial Common Lisp I use, also has large amounts of extensions to CL. Including a function to split sequences/strings, parallel and concurrent extensions, ... ;-) It's actually the same commercial Common Lisp which Rich Hickey used years ago to write his first Lisp programs and where he developed his first ideas for Clojure.

[JasonFruit]

Are you working under an NDA or something? Are you being threatened? Blink three times if you need help.

Seriously, is there a reason you have to hint about what Lisp you use?

[lispm]

I just didn't want it to sound like an advertizement.

If you are interested, I'm using LispWorks <http://www.lispworks.com>. The other large commercial Common Lisp implementation is Allegro CL <https://franz.com/products/allegro-common-lisp/>.

[medo-bear]

Is there a reason you can't ask politely?

[JasonFruit]

Because I thought it was funny, and I'm pretty sure lispm has enough sense of humor not to need a valiant protector today.

[ivanb]

There are about two of them anyway.